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Finding the Fourth Proportional to 1,242,754.07, 1,714,973.72 and 719,486.74

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Solution

The fourth proportional to 1,242,754.07, 1,714,973.72 and 719,486.74 is: 992,876.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,754.07 : 1,714,973.72 = 719,486.74 : x
  2. Step 2: Convert to fraction form
    1,242,754.07/1,714,973.72 = 719,486.74/x
  3. Step 3: Cross multiply
    1,242,754.07x = 1,714,973.72 × 719,486.74
  4. Step 4: Simplify right side
    1,242,754.07x = 1,233,900,850,988.47
  5. Step 5: Solve for x
    x = 1,233,900,850,988.47/1,242,754.07
  6. Step 6: Final answer
    x = 992,876.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.